25. A cart initially traveling at 10. m/s north accelerates uniformly
at 3.0 m/s2 to the north for 4.0 s. The displacement of the cart during the 4.0 s from its initial position is 40. m north64
m north88 m
north180 m north

28. In an experiment that measures how fast a student reacts, a meter
stick dropped from rest falls 0.20 m before the student catches it. The reaction time of the student is approximately 0.10 s0.20
s0.30 s0.40 s

31. If an object is traveling east with decreasing speed, the direction of the object's acceleration is
northsoutheastwest

32. A roller coaster, traveling with an initial speed of 15 m/s, decelerates uniformly at -7.0 m/s2 to a full stop.
Approximately how far does the roller coaster travel during its deceleration?
1.0 m2.0 m16 m32 m